28327689

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{12743}}^1$

素因数の和:12781

約数の個数: 24

約数和(自身を含む): 46388160

約数和(自身を除く): 18060471

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 12743, 38229, 114687, 165659, 242117, 496977, 726351, 1490931, 2179053, 3147521, 9442563, 28327689]

約数ペア:

[(1, 28327689), (3, 9442563), (9, 3147521), (13, 2179053), (19, 1490931), (39, 726351), (57, 496977), (117, 242117), (171, 165659), (247, 114687), (741, 38229), (2223, 12743)]